diff --git a/error/error.go b/error/error.go
index 48650cc4..0a44fbf4 100644
--- a/error/error.go
+++ b/error/error.go
@@ -41,6 +41,7 @@ import (
 	"github.com/pingcap/errors"
 	"github.com/pingcap/kvproto/pkg/kvrpcpb"
 	"github.com/pingcap/kvproto/pkg/pdpb"
+	"github.com/pingcap/parser/terror"
 	"github.com/tikv/client-go/v2/internal/logutil"
 	"github.com/tikv/client-go/v2/util"
 	"go.uber.org/zap"
@@ -259,3 +260,8 @@ func ExtractKeyErr(keyErr *kvrpcpb.KeyError) error {
 	}
 	return errors.Errorf("unexpected KeyError: %s", keyErr.String())
 }
+
+// IsErrorUndetermined checks if the error is undetermined error.
+func IsErrorUndetermined(err error) bool {
+	return terror.ErrorEqual(err, terror.ErrResultUndetermined)
+}
diff --git a/integration_tests/2pc_test.go b/integration_tests/2pc_test.go
index 20a74ac2..8ce41838 100644
--- a/integration_tests/2pc_test.go
+++ b/integration_tests/2pc_test.go
@@ -51,7 +51,6 @@ import (
 	"github.com/pingcap/errors"
 	"github.com/pingcap/failpoint"
 	"github.com/pingcap/kvproto/pkg/kvrpcpb"
-	"github.com/pingcap/parser/terror"
 	drivertxn "github.com/pingcap/tidb/store/driver/txn"
 	"github.com/stretchr/testify/suite"
 	"github.com/tikv/client-go/v2/config"
@@ -1433,7 +1432,7 @@ func (s *testCommitterSuite) TestFailCommitPrimaryRpcErrors() {
 	s.Nil(err)
 	err = t1.Commit(context.Background())
 	s.NotNil(err)
-	s.True(terror.ErrorEqual(err, terror.ErrResultUndetermined), errors.ErrorStack(err))
+	s.True(tikverr.IsErrorUndetermined(err), errors.ErrorStack(err))
 
 	// We don't need to call "Rollback" after "Commit" fails.
 	err = t1.Rollback()
@@ -1454,7 +1453,7 @@ func (s *testCommitterSuite) TestFailCommitPrimaryRegionError() {
 	s.Nil(err)
 	err = t2.Commit(context.Background())
 	s.NotNil(err)
-	s.True(terror.ErrorNotEqual(err, terror.ErrResultUndetermined))
+	s.False(tikverr.IsErrorUndetermined(err), errors.ErrorStack(err))
 }
 
 // TestFailCommitPrimaryRPCErrorThenRegionError tests the case when commit first
@@ -1470,7 +1469,7 @@ func (s *testCommitterSuite) TestFailCommitPrimaryRPCErrorThenRegionError() {
 	s.Nil(err)
 	err = t1.Commit(context.Background())
 	s.NotNil(err)
-	s.True(terror.ErrorEqual(err, terror.ErrResultUndetermined), errors.ErrorStack(err))
+	s.True(tikverr.IsErrorUndetermined(err), errors.ErrorStack(err))
 }
 
 // TestFailCommitPrimaryKeyError tests KeyError is handled properly when
@@ -1487,7 +1486,7 @@ func (s *testCommitterSuite) TestFailCommitPrimaryKeyError() {
 	s.Nil(err)
 	err = t3.Commit(context.Background())
 	s.NotNil(err)
-	s.True(terror.ErrorNotEqual(err, terror.ErrResultUndetermined))
+	s.False(tikverr.IsErrorUndetermined(err))
 }
 
 // TestFailCommitPrimaryRPCErrorThenKeyError tests KeyError overwrites the undeterminedErr.
@@ -1503,7 +1502,7 @@ func (s *testCommitterSuite) TestFailCommitPrimaryRPCErrorThenKeyError() {
 	s.Nil(err)
 	err = t3.Commit(context.Background())
 	s.NotNil(err)
-	s.False(terror.ErrorEqual(err, terror.ErrResultUndetermined))
+	s.False(tikverr.IsErrorUndetermined(err))
 }
 
 func (s *testCommitterSuite) TestFailCommitTimeout() {
diff --git a/integration_tests/async_commit_fail_test.go b/integration_tests/async_commit_fail_test.go
index be335ad7..252abc56 100644
--- a/integration_tests/async_commit_fail_test.go
+++ b/integration_tests/async_commit_fail_test.go
@@ -43,7 +43,6 @@ import (
 	"github.com/pingcap/errors"
 	"github.com/pingcap/failpoint"
 	"github.com/pingcap/kvproto/pkg/kvrpcpb"
-	"github.com/pingcap/parser/terror"
 	"github.com/stretchr/testify/suite"
 	tikverr "github.com/tikv/client-go/v2/error"
 	"github.com/tikv/client-go/v2/tikv"
@@ -87,7 +86,7 @@ func (s *testAsyncCommitFailSuite) TestFailAsyncCommitPrewriteRpcErrors() {
 	ctx := context.WithValue(context.Background(), util.SessionID, uint64(1))
 	err = t1.Commit(ctx)
 	s.NotNil(err)
-	s.True(terror.ErrorEqual(err, terror.ErrResultUndetermined), errors.ErrorStack(err))
+	s.True(tikverr.IsErrorUndetermined(err), errors.ErrorStack(err))
 
 	// We don't need to call "Rollback" after "Commit" fails.
 	err = t1.Rollback()